Abstract Architected materials produced by metal additive manufacturing techniques offer realization of complex structural hierarchies that mimic the principles crystal plasticity while still being ultralight-weight. However, they suffer from deep-rooted multiscale defects including microstructural heterogeneity caused thermo-mechanical transients in melt pool. Here we manufacture meta-crystal ...

Classical plasticity models, being scale independent, cannot capture any size depedent behavior. A remedy is to adopt a gradient plasticity model at the sub-granular (meso) scale to account for the different micro-processes leading to the various size effects. In this contribution, we adopt, at the meso scale, the isotropic gradient plasticity model in [1] which incorporated the plasticity rota...